Gas-washer.



PATENTED OCT. 18, 1904.

F. BURGEMEISTER;

GAS WASHER. APPLICATION FILED JULY 25,1903.

2 SHEETS-SHEET 1.

NO MODEL.

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No. 772,779. 7 'PATENTED 007?. 18, 1904.

F. BURGEMEISTBR.

v GAS WASHER. APPLICATION PILED JULY 25,1903. 7 NO MODEL. 2 BHEETS-SHEET 2.

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' UNITED, STATES.

Patented October 18, I504.

PATENT OFFICE- FRIEDRICH BURGEMEISTER, OF CELLE, GERMANY.

GAS-WASHER.

SPECIFICATION forming part of Letters Patent No. 772,779, dated October 18, 1904.

Application filed J'uly25n1903. Serial No. 166,994- (No model.)

To all whom it may ncern.-.

Be'it known that I, FRIEDRICH BURGEMEIS- TER, director of the gas-works of Cells, a subject of the King of Prussia, Emperor of Germany, residing at Celle, Province of Hanover, Germany, have invented an Improved Construction of Gas-Washers, of which'the following is a specification.

This invention relates to an improved construction of gas-washers for purifying gases, which is mainly intended to replace those scrubbers used in the manufacture of illuminating-gas in which hurdles, sheet-metal trays, coke, and the like are usually employed I gases is effected by a peculiar arrangement for spraying the liquid.

The improved gas-washers when used in the place of scrubbers and ordinary washers in gas-works and coke-ovens enables the ammonia and the like to be separated from the gas in the simplest and most perfect manner with a comparatively small expenditure of water. The spraying can be effected with suitable liquids and in several consecutive apparatus, ammonia-water being employed in the first vessel in the case of the production of illuminating-gas and in the last apparatus pure water. The employment of a comparatively small quantity of water is rendered possible according to this invention by the fact that the liquid entering the apparatus through a narrow nozzle falls upon plates or rings arranged at such distances below the nozzle and below each other that a particularly fine and complete spraying of the liquid is effected, so that an intimate contact of the liquid with the gas takes place, and the liquid in consequence takes up a large quantity of matter from the gas.

The gas-washer can also serve for the precipitation of tar and other impurities, in particular also of dust from blast-furnace gases, as also generally for the purification of gases for motive power or for atomizing anthraceneoil for separation of the naphthalene from the illuminating-gas.

The accompanying drawings show, by way of example, agas-washer constructed according to this invention.

Figure 1 shows a vertical section; Fig. 2, a section through a spraying-ring, to an enlarged scale; and Fig. 3, a plan of the spraying-ring. i

On the top of the gas-washer casing, Fig. 1, is a stand-pipe a, into which liquid is introduced through a nozzle Z. ment shown the liquid is introduced through an inverted siphon-pipe b from a supply-cock 0. The liquid issuing through the nozzle Z first falls onto a convex plate 0?, from which that portion which is not converted into spray falls onto the spraying-rings e e to 5*, arranged below the plate d.

The spraying-rings e have a convex upper surface and conical side surfaces, Figs. 2 and 3. Holes f serve for the passage of rods 9, by means of which the spraying-rings are held suspended at a certain distance apart. At the lower ends of the holes f are preferably provided funnel-shaped projections serving to prevent the liquid from flowing down along the rods g. r

The actionof the apparatus is as follows: When a jet of liquid falls from the nozzle Z onto the convex metal or porcelain plate d,

In the arrange a portion of the'liquid impinging upon the plate will be converted into spray projected in radiating lines, as indicated, so that the separate drops of liquid are distributed throughout the apparatus, while the portion of the liquid that is not converted into spray flows off from the edge of the disk cl. This portion of the liquid. falls upon the spraying-ring 0,

situated at a suitable distance below d, and as the upper surface of the ring 0 is convex the liquid is also partly converted into spray and 1 partly flows downward along the conicalside surfaces of 0. From these surfaces the unsprayed portion of the liquid falls onto the second spraying-ring, and so on, the liquid being eventually entirely converted into spray by means of the several rings a to a. By this means a very effective spraying and washing of the gas in the whole of the interior of the apparatus is effected.

The num ber of the spraying-rings employed will depend upon the height of the apparatus and the purpose for which it is used.

In existing gas-Works the scrubbers with hurdles, 850., can be readily converted by the removal of the hurdles and the mounting of the above-described devices for the supply and spraying of the liquid in the scrubber casing.

In place of the spraying-rings may be used spraying-plates with convex, concave, or fiat upper surfaces and conical sides. In this case also the convex surface may be provided with holes that allow the liquid to flow through.

In the arrangement shown at Fig. 1 the lower edges of the spraying-rings are shown rounded. With this construction of the lower of the spraying-ring.

presenting a convex imper'forate surface for the lodginent of a liquid and provided with an inwardly-sloping under surface.

2. A spraying device of the class described, having a convex in'iperforate surface for the lodginentof liquid, the sides of said sprayii'ig .7

device converging domnvardly.

3. A spraying device of the class described, consisting of a ring tapered in cross-section and having a convex surface for the lodgment of liquid thereon.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

F. BURGEMEIS'lflfili.

Vitnesses:

A. THAYER, EUGENIO Gino. 

